PMID- 30029134
OWN - NLM
STAT- MEDLINE
DCOM- 20181218
LR  - 20181218
IS  - 1879-1026 (Electronic)
IS  - 0048-9697 (Linking)
VI  - 645
DP  - 2018 Dec 15
TI  - Occurrence and distribution of perfluorooctanoic acid (PFOA) and 
      perfluorooctanesulfonic acid (PFOS) in natural forest soils: A nationwide study 
      in China.
PG  - 596-602
LID - S0048-9697(18)32637-8 [pii]
LID - 10.1016/j.scitotenv.2018.07.151 [doi]
AB  - Forests serve as the primary reservoir for organic carbon above ground. Previous 
      studies have revealed that forest soils play key roles in the retention of 
      persistent organic pollutants (POPs). In this study, the occurrence and 
      distribution of perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid 
      (PFOS) were investigated in 54 surface soil samples from 28 natural forested 
      mountain sites across China between 2012 and 2013. The detection frequency of 
      PFOA (70%) was significantly higher than that of PFOS (4%). PFOA levels ranged 
      from <0.9 to 9.0 pg.g(-1) dry weight (dw). Levels of PFOA and PFOS in forest 
      soils were significantly lower than those in agricultural, urban and rural areas 
      in China. Relatively high levels of PFOA were detected in Hubei Province (Jiugong 
      Mountain, average: 3.4 pg.g(-1) dw) and Jiangxi Province (Wugong Mountain, 
      average: 4.4 pg.g(-1) dw), where many domestic fluoropolymer manufacturers are 
      located. PFOS was only detected in these two provinces (2.2 pg.g(-1) dw and 
      2.7 pg.g(-1) dw, respectively). From most of the surveyed mountains, the 
      concentrations of PFOA increased with elevation. The lower temperature and 
      greater precipitation probably made PFOA and its precursors available to 
      transport and degrade more readily at higher altitude sites. A relatively higher 
      level (1.9 +/- 1.3 pg.g(-1) dw) of PFOA was found in the broadleaf evergreen forest 
      area, mainly due to the high industrial emissions, plant retention, and 
      precipitation rate in this area. Source were the dominant factor controlling the 
      spatial distribution of PFOA in natural forest soils in China.
CI  - Copyright (c) 2018. Published by Elsevier B.V.
FAU - Wang, Qi
AU  - Wang Q
AD  - MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of 
      Environmental Science and Engineering, Nankai University, Tianjin 300071, China; 
      State Key Laboratory in Marine Pollution, City University of Hong Kong, Hong Kong 
      SAR, China.
FAU - Zhao, Zhen
AU  - Zhao Z
AD  - MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of 
      Environmental Science and Engineering, Nankai University, Tianjin 300071, China. 
      Electronic address: zhaozhen@nankai.edu.cn.
FAU - Ruan, Yuefei
AU  - Ruan Y
AD  - State Key Laboratory in Marine Pollution, City University of Hong Kong, Hong Kong 
      SAR, China.
FAU - Li, Jun
AU  - Li J
AD  - State Key Laboratory of Organic Geochemistry, Guangzhou Institute of 
      Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
FAU - Sun, Hongwen
AU  - Sun H
AD  - MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of 
      Environmental Science and Engineering, Nankai University, Tianjin 300071, China.
FAU - Zhang, Gan
AU  - Zhang G
AD  - State Key Laboratory of Organic Geochemistry, Guangzhou Institute of 
      Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
LA  - eng
PT  - Journal Article
DEP - 20180718
PL  - Netherlands
TA  - Sci Total Environ
JT  - The Science of the total environment
JID - 0330500
RN  - 0 (Alkanesulfonic Acids)
RN  - 0 (Caprylates)
RN  - 0 (Fluorocarbons)
RN  - 0 (Soil)
RN  - 0 (Soil Pollutants)
RN  - 947VD76D3L (perfluorooctanoic acid)
RN  - 9H2MAI21CL (perfluorooctane sulfonic acid)
SB  - IM
MH  - Alkanesulfonic Acids/*analysis
MH  - Caprylates/*analysis
MH  - China
MH  - *Environmental Monitoring
MH  - Fluorocarbons/*analysis
MH  - Forests
MH  - Soil/*chemistry
MH  - *Soil Pollutants
OTO - NOTNLM
OT  - Altitude
OT  - Forest soil
OT  - Natural mountain
OT  - PFOA
OT  - PFOS
EDAT- 2018/07/22 06:00
MHDA- 2018/12/19 06:00
CRDT- 2018/07/21 06:00
PHST- 2018/05/24 00:00 [received]
PHST- 2018/07/09 00:00 [revised]
PHST- 2018/07/12 00:00 [accepted]
PHST- 2018/07/22 06:00 [pubmed]
PHST- 2018/12/19 06:00 [medline]
PHST- 2018/07/21 06:00 [entrez]
AID - S0048-9697(18)32637-8 [pii]
AID - 10.1016/j.scitotenv.2018.07.151 [doi]
PST - ppublish
SO  - Sci Total Environ. 2018 Dec 15;645:596-602. doi: 10.1016/j.scitotenv.2018.07.151. 
      Epub 2018 Jul 18.